Going to the bathroom is much more complicated in space without any gravity. To solve this problem of tricky orbital potty breaks, NASA builds special toilets that work without gravity.

For the first time, scientists using the NASA/ESA Hubble Space Telescope have found evidence of volcanic activity reforming the atmosphere on a rocky planet

The two countries will create research facilities on the surface and/or in the moon's orbit.

Researchers have discovered the presence of high-energy neutrinos in the wake of a star being destroyed by a black hole.

A new analysis of rock samples brought back from NASA's Apollo missions help clear up questions about the moon's formation and lava-covered early years.

Send us your questions – and join us live to hear about the solar system.

Facebook's choice of profits over the people is difficult to reconcile with its commitment to free speech.

The SpaceX mission will make Hayley Arceneaux the first person with a prosthesis to visit space.

A new theory about how the planets of our solar system formed may explain the differences between the inner- and outer-most planets.